/*
 * Copyright (c) 2015 Sylvain Peyrefitte
 *
 * This file is part of mstsc.js.
 *
 * mstsc.j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

(function () {
  /**
   * Use for domain declaration
   */
  Mstsc = function () {};

  Mstsc.prototype = {
    // shortcut
    $: function (id) {
      return document.getElementById(id);
    },

    /**
     * Compute screen offset for a target element
     * @param el {DOM element}
     * @return {top : {integer}, left {integer}}
     */
    elementOffset: function (el) {
      var x = 0;
      var y = 0;
      while (el && !isNaN(el.offsetLeft) && !isNaN(el.offsetTop)) {
        x += el.offsetLeft - el.scrollLeft;
        y += el.offsetTop - el.scrollTop;
        el = el.offsetParent;
      }
      return { top: y, left: x };
    },

    /**
     * Try to detect browser
     * @returns {String} [firefox|chrome|ie]
     */
    browser: function () {
      if (typeof InstallTrigger !== "undefined") {
        return "firefox";
      }

      if (!!window.chrome) {
        return "chrome";
      }

      if (!!document.docuemntMode) {
        return "ie";
      }

      return null;
    },

    /**
     * Try to detect language
     * @returns
     */
    locale: function () {
      return window.navigator.userLanguage || window.navigator.language;
    },
  };
})();

this.Mstsc = new Mstsc();
